Peas, beans, and peanuts are all examples of legumes. Legumes are a specific type of plant which possess nodules on their roots. What is the purpose of these nodules?

a) The nodules contain chemicals which repel insects, like ants and beetles.

b) The nodules contain pumps which allow water to enter the roots using reverse osmosis.

c) The nodules store plant sugars which are created during the process of photosynthesis.

d) The nodules contain bacteria which can convert atmospheric nitrogen into ammonia.

Question

Peas, beans, and peanuts are all examples of legumes. Legumes are a specific type of plant which possess nodules on their roots. What is the purpose of these nodules? 

a) The nodules contain chemicals which repel insects, like ants and beetles.

b) The nodules contain pumps which allow water to enter the roots using reverse osmosis.

c) The nodules store plant sugars which are created during the process of photosynthesis.

d) The nodules contain bacteria which can convert atmospheric nitrogen into ammonia.